Burning backup to dvd

[Margaret_Doll]

On Wednesday, July 26, 2006, at 11:35 AM, Ed Kim wrote:

> Anne Wilson wrote:
>> On Wednesday 26 July 2006 15:56, Ed Kim wrote:
>>> try these commands
>>>
>>> mkisofs -o /Backup/mybackup.iso -R -J -l -v /path/to/data/directory/
>>>
>> That worked perfectly.
>>> cdrecord -v -sao dev=cdrom -data /Backup/mybackup.iso
>>>
>> This still chokes:
>> ......
>> cdrecord: Found DVD media: using cdr_mdvd.
>> Using generic SCSI-3/mmc DVD-R(W) driver (mmc_mdvd).
>> Driver flags   : SWABAUDIO BURNFREE
>> Supported modes: PACKET SAO
>> Drive buf size : 1563904 = 1527 KB
>> FIFO size      : 4194304 = 4096 KB
>> Track 01: data  1714 MB
>> Total size:     1968 MB (195:02.81) = 877711 sectors
>> Lout start:     1969 MB (195:04/61) = 877711 sectors
>> Current Secsize: 2048
>>   ATIP start of lead in:  -150 (00:00/00)
>> Disk type:    unknown dye (reserved id code)
>> Manuf. index: -1
>> Manufacturer: unknown (not in table)
>> Blocks total: 15872 Blocks current: 15872 Blocks remaining: -861839
>> cdrecord: WARNING: Data may not fit on current disk.
>> cdrecord: Notice: Most recorders cannot write CD's >= 90 minutes.
>> cdrecord: Notice: Use -ignsize option to allow >= 90 minutes.
>> cdrecord: Notice: Use -overburn option to write more than the 
>> official disk capacity.
>> cdrecord: Notice: Most CD-writers do overburning only on SAO or RAW 
>> mode.
>> ******
>> From the man page:
>>  -ignsize
>>               Ignore  the known size of the medium. This option 
>> should be used
>>               with extreme care, it exists only for debugging  
>> purposes  don’t
>>               use  it for other reasons.  It is not needed to write 
>> disks with
>>               more than the nominal capacity.  This option implies  
>> -overburn.
>> so it doesn't sound as though that would be the solution.
>> In order to rule out some of the possible causes I did try to write a 
>> straightforward data dvd backup in k3b - something I do regularly on 
>> this workstation.  Both boxes have the same version of cdrecord.  On 
>> the box that I'm trying to backup I cannot get a dvd backup.  On this 
>> one there is no problem.  On the problematic one I keep seeing 
>> references to pread642(2)
>> Anne
> Can you attempt to use a different DVD media?  in the past, when I 
> have seen cdrecord spit,
>
> Disk type:    unknown dye (reserved id code)
>
> A change in media manufacturers or a double check on +R/-R 
> capabilities and disc types does the trick.

I haven't been following this issue, but are you using the correct 
device (dev=cdrom)

On my particular computer I have two cd/dvd readers, but you can write 
to only one.  I mounted a dvd on the writer device.
It came out to be /mnt/cdrom1.  I found that /mnt/cdrom1 was a link to 
/dev/scd0

I cd record to /dev/cdwriter:@  and I dvd record to /dev/scd0


>
> -- 
> Ed Kim, RHCE
> http://www.rhatbox.com
>
> -- 
> fedora-list mailing list
> fedora-list at redhat.com
> To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
>